All but Which One of the Following Are Ways That

Multiple Choice

All but which one of the following are ways that Vygotsky's theory can be incorporated into the classroom?

A) Teachers should use the zone of proximal development when teaching.
B) Teachers should rarely use scaffolding because it confuses the children.
C) Teachers should allow more-skilled peers to help out with the teaching.
D) Teachers should encourage the use of private speech with their students.